Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Development of a lightweight epoxy asphalt mixture for bridge decks
Highlights We tested granulated and rounded lightweight aggregate to use in epoxy asphalt mix. Mix with higher lightweight aggregate percentage necessitates higher asphalt content. The mix performance varies with the shapes and percentages of lightweight aggregate. An epoxy asphalt mix with 70% rounded lightweight aggregate is proposed.
Abstract A lightweight epoxy asphalt mixture (LEAM) was developed by replacing part of the basalt aggregate in an epoxy asphalt mixture with lightweight aggregate. These mixtures were evaluated as alternative to basalt mixes for deck paving of the TianJin bascule bridge in China. Nine different types of LEAM with varying lightweight aggregate shapes and percentages were designed and tested. The results indicated significant variations in performance. This approach was deemed viable based on FEM analyses that indicated significant stress reductions using lightweight material. Based on the findings it is recommended that a LEAM with 70% rounded lightweight aggregate be used to reduce the deadweight of the deck paving and optimize performance in terms of rutting and cracking resistance.
Development of a lightweight epoxy asphalt mixture for bridge decks
Highlights We tested granulated and rounded lightweight aggregate to use in epoxy asphalt mix. Mix with higher lightweight aggregate percentage necessitates higher asphalt content. The mix performance varies with the shapes and percentages of lightweight aggregate. An epoxy asphalt mix with 70% rounded lightweight aggregate is proposed.
Abstract A lightweight epoxy asphalt mixture (LEAM) was developed by replacing part of the basalt aggregate in an epoxy asphalt mixture with lightweight aggregate. These mixtures were evaluated as alternative to basalt mixes for deck paving of the TianJin bascule bridge in China. Nine different types of LEAM with varying lightweight aggregate shapes and percentages were designed and tested. The results indicated significant variations in performance. This approach was deemed viable based on FEM analyses that indicated significant stress reductions using lightweight material. Based on the findings it is recommended that a LEAM with 70% rounded lightweight aggregate be used to reduce the deadweight of the deck paving and optimize performance in terms of rutting and cracking resistance.
Development of a lightweight epoxy asphalt mixture for bridge decks
Qian, Zhendong (Autor:in) / Chen, Chun (Autor:in) / Jiang, Chenlong (Autor:in) / Smit, André de Fortier (Autor:in)
Construction and Building Materials ; 48 ; 516-520
24.06.2013
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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